Yes, after I get the error I can immediately send the same message to my test list. I can also hit resume and another few emails presumably go out. The page counts always says "0" were sent to the server. But if I go to another page, the info at the top of the page indicates that the number of messages left to be sent is 17 or 18 messages less than before.
I've enabled the SMTP log. How do I view it?
UPDATE
Oh, I see. You only see it when email goes out. I just sent the message to selected names on the same mailing list and saw the attachment. I don't get that when I send to the whole list, so I presume that means nothing was sent. Here is the log from the email to the selection (3 names) if that will help.
> EHLO localhost
250-box***.host.com Hello localhost [127.0.0.1]
250-SIZE 52428800
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
LM: SMTP Pipelining Detected
> NOOP
250 OK
> MAIL FROM: <bounce@mydomain.com>
> RCPT TO: <nameremoved@domainremoved.org>
250 OK
250 Accepted
> DATA
354 Enter message, ending with "." on a line by itself
> SENT DATA
250 OK id=1IR50t-0007hJ-MG
> MAIL FROM: <bounce@mydomain.com>
> RCPT TO: <nameremoved@domainremoved.org>
250 OK
250 Accepted
> DATA
354 Enter message, ending with "." on a line by itself
> SENT DATA
250 OK id=1IR50u-0007hJ-7O
> MAIL FROM: <bounce@mydomain.com>
> RCPT TO: <nameremoved@domainremoved.org>
250 OK
250 Accepted
> DATA
354 Enter message, ending with "." on a line by itself
> SENT DATA
250 OK id=1IR50v-0007hJ-9y
> QUIT
221 box***.host.com closing connection